// Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
//
// You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
// copy, modify, and distribute this software in source code or binary form for use
// in connection with the web services and APIs provided by Facebook.
//
// As with any software that integrates with the Facebook platform, your use of
// this software is subject to the Facebook Developer Principles and Policies
// [http://developers.facebook.com/policy/]. This copyright notice shall be
// included in all copies or substantial portions of the software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

import FacebookLogin
import Foundation
import UIKit

class LoginButtonViewController: UIViewController, LoginButtonDelegate {

  override func viewDidLoad() {
    super.viewDidLoad()
    let button = FBLoginButton(permissions: [.publicProfile])
    button.delegate = self
    button.center = view.center
    view.addSubview(button)
  }

  // MARK: LoginButtonDelegate

  func loginButton(_ loginButton: FBLoginButton, didCompleteWith result: LoginManagerLoginResult?, error: Error?) {
    print("Did complete login via LoginButton with result \(String(describing: result)) " +
      "error\(String(describing: error))")
  }

  func loginButtonDidLogOut(_ loginButton: FBLoginButton) {
    print("Did logout via LoginButton")
  }
}
